Professional IRWIN drill bit made of high-speed steel (HSS) with a titanium nitride (TiN) coating for fast and precise metal drilling. Offers a long service life, fast chip evacuation, and perfect centering thanks to a 135° tip. Ideal for rotary drilling with higher speeds and reduced friction.
The IRWIN HSS TiN metal drill bit with an 8 mm diameter is designed for demanding use in industry and workshops. The titanium nitride coating with a hardness of approx. 80 HRC provides significantly higher wear resistance and up to 6× longer life than standard HSS drill bits with a black-oxide finish.
The ground 135° tip delivers a self-centering effect, reduces required feed pressure, and minimizes surface tearing. The industrially ground flute ensures rapid chip removal and stable performance even under higher cutting conditions.
- Higher productivity: allows increasing speed by 40–60% and feed by 10–20% without a major reduction in tool life.
- Lower friction and temperature: TiN has a low coefficient of friction, reducing heat generation and energy demand.
- Better thermal management: more heat is carried into the workpiece and coolant, reducing load on the drill bit.
- Accuracy and hole quality: 135° tip for clean and precise starts without walking.
Specifications
- Diameter
- 8.0 mm
- Working length
- 75 mm
- Overall length
- 117 mm
- Shank
- Cylindrical
- Drilling method
- Rotary
- Drill material
- HSS (high-speed steel) with TiN coating
- Point angle
- 135° (ground tip)
- Surface treatment
- Titanium nitride (TiN), approx. 80 HRC
- Application
- Metal
- Service life
- Up to 6× longer than standard HSS drills with black-oxide finish
- Recommended cutting conditions
- Can increase speed by 40–60% and feed by 10–20%
